The FBI is investigating a computer system security breach at Stanford University that may have put the personal information of nearly 10,000 people at risk, the university said Wednesday.

The intrusion occurred at the Career Development Center on May 11, when someone gained access to the school's network from outside the university, Stanford general counsel Debra Zumwalt said. The university said that it began notifying people about the incident on Monday, contacting about 9,600 clients--mostly students--and 300 recruiters who registered at the office since 1996.

Client records included Social Security numbers and resumes, financial data, and government information, the university said. However, some recruiter records included credit card information.

When the network breach was detected, the center's computers were temporarily disabled and the incident was reported to the FBI field office in San Jose, Calif.

"Protection of confidential information is a high priority of Stanford," Zumwalt said in a statement. "Since this incident, we have been working to understand this breach of our system and ways to prevent a reoccurrence."

The notifications were made in accordance with the 2003 Security Breach Information Act, which requires companies to disclose incidents in which a California resident's confidential information has been jeopardized.

The break-in follows a similar incident at Virginia's George Mason University in January, in which hackers gained access to the personal information, including Social Security numbers, of more than 30,000 students, faculty and staff. As a result of the attack, the university promised to change the manner in which it uses Social Security numbers to identify people, including striking the codes from its campus IDs.

Report offensive content:

If you believe this comment is offensive or violates the CNET's Site Terms of Use, you can report it below (this will not automatically remove the comment). Once reported, our staff will be notified and the comment will be reviewed.

E-mail this comment to a friend.

E-mail this to:

Note: Your e-mail address is used only to let the recipient know who sent the e-mail and in case of transmission error. Neither your address nor the recipients's address will be used for any other purpose.